-40.08% is the change from 242 to 145
Calculation steps:
[( 145 - 242 ) ÷ 242] x 100 = -40.08%
Formula
Percentage change = [(145 - 242) / 242] x 100
Subtract the new number by the original number
145 - 242 = -97
-97 ÷ 242 = -0.40082644628099173
-0.40082644628099173 x 100 = -40.08%